• # question_answer 6) A solution is prepared by adding 2 g of a substance A to 18 g of water. Calculate the mass percent of the solute.

Mass percentage of solute, $=\frac{\text{Mass}\,\text{of}\,\text{solute}}{\text{Mass}\,\text{of}\,\text{solution}}\times 100$ $=\frac{2}{20}\times 100=10$